michael@0: function test() {
michael@0:   var isWin7OrHigher = false;
michael@0:   try {
michael@0:     let version = Cc["@mozilla.org/system-info;1"]
michael@0:                     .getService(Ci.nsIPropertyBag2)
michael@0:                     .getProperty("version");
michael@0:     isWin7OrHigher = (parseFloat(version) >= 6.1);
michael@0:   } catch (ex) { }
michael@0: 
michael@0:   is(!!Win7Features, isWin7OrHigher, "Win7Features available when it should be");
michael@0:   if (!isWin7OrHigher)
michael@0:     return;
michael@0: 
michael@0:   const ENABLE_PREF_NAME = "browser.taskbar.previews.enable";
michael@0: 
michael@0:   let temp = {};
michael@0:   Cu.import("resource:///modules/WindowsPreviewPerTab.jsm", temp);
michael@0:   let AeroPeek = temp.AeroPeek;
michael@0: 
michael@0:   waitForExplicitFinish();
michael@0: 
michael@0:   gPrefService.setBoolPref(ENABLE_PREF_NAME, true);
michael@0: 
michael@0:   is(1, AeroPeek.windows.length, "Got the expected number of windows");
michael@0: 
michael@0:   checkPreviews(1, "Browser starts with one preview");
michael@0: 
michael@0:   gBrowser.addTab();
michael@0:   gBrowser.addTab();
michael@0:   gBrowser.addTab();
michael@0: 
michael@0:   checkPreviews(4, "Correct number of previews after adding");
michael@0: 
michael@0:   for each (let preview in AeroPeek.previews)
michael@0:     ok(preview.visible, "Preview is shown as expected");
michael@0: 
michael@0:   gPrefService.setBoolPref(ENABLE_PREF_NAME, false);
michael@0:   checkPreviews(4, "Previews are unchanged when disabling");
michael@0: 
michael@0:   for each (let preview in AeroPeek.previews)
michael@0:     ok(!preview.visible, "Preview is not shown as expected after disabling");
michael@0: 
michael@0:   gPrefService.setBoolPref(ENABLE_PREF_NAME, true);
michael@0:   checkPreviews(4, "Previews are unchanged when re-enabling");
michael@0:   for each (let preview in AeroPeek.previews)
michael@0:     ok(preview.visible, "Preview is shown as expected after re-enabling");
michael@0: 
michael@0:   [1,2,3,4].forEach(function (idx) {
michael@0:     gBrowser.selectedTab = gBrowser.tabs[idx];
michael@0:     ok(checkSelectedTab(), "Current tab is correctly selected");
michael@0:   });
michael@0: 
michael@0:   let currentSelectedTab = gBrowser.selectedTab;
michael@0:   for each (let idx in [1,2,3,4]) {
michael@0:     let preview = getPreviewForTab(gBrowser.tabs[0]);
michael@0:     let canvas = createThumbnailSurface(preview);
michael@0:     let ctx = canvas.getContext("2d");
michael@0:     preview.controller.drawThumbnail(ctx, canvas.width, canvas.height);
michael@0:     ok(currentSelectedTab.selected, "Drawing thumbnail does not change selection");
michael@0:     canvas = getCanvas(preview.controller.width, preview.controller.height);
michael@0:     ctx = canvas.getContext("2d");
michael@0:     preview.controller.drawPreview(ctx);
michael@0:     ok(currentSelectedTab.selected, "Drawing preview does not change selection");
michael@0:   }
michael@0: 
michael@0:   // Close #4
michael@0:   getPreviewForTab(gBrowser.selectedTab).controller.onClose();
michael@0:   checkPreviews(3, "Expected number of previews after closing selected tab via controller");
michael@0:   ok(gBrowser.tabs.length == 3, "Successfully closed a tab");
michael@0: 
michael@0:   // Select #1
michael@0:   ok(getPreviewForTab(gBrowser.tabs[0]).controller.onActivate(), "Activation was accepted");
michael@0:   ok(gBrowser.tabs[0].selected, "Correct tab was selected");
michael@0:   checkSelectedTab();
michael@0: 
michael@0:   // Remove #3 (non active)
michael@0:   gBrowser.removeTab(gBrowser.tabContainer.lastChild);
michael@0:   checkPreviews(2, "Expected number of previews after closing unselected via browser");
michael@0: 
michael@0:   // Remove #1 (active)
michael@0:   gBrowser.removeTab(gBrowser.tabContainer.firstChild);
michael@0:   checkPreviews(1, "Expected number of previews after closing selected tab via browser");
michael@0: 
michael@0:   // Add a new tab
michael@0:   gBrowser.addTab();
michael@0:   checkPreviews(2);
michael@0:   // Check default selection
michael@0:   checkSelectedTab();
michael@0: 
michael@0:   // Change selection
michael@0:   gBrowser.selectedTab = gBrowser.tabs[0];
michael@0:   checkSelectedTab();
michael@0:   // Close nonselected tab via controller
michael@0:   getPreviewForTab(gBrowser.tabs[1]).controller.onClose();
michael@0:   checkPreviews(1);
michael@0: 
michael@0:   if (gPrefService.prefHasUserValue(ENABLE_PREF_NAME))
michael@0:     gPrefService.clearUserPref(ENABLE_PREF_NAME);
michael@0: 
michael@0:   finish();
michael@0: 
michael@0:   function checkPreviews(aPreviews, msg) {
michael@0:     let nPreviews = AeroPeek.previews.length;
michael@0:     is(aPreviews, gBrowser.tabs.length, "Browser has expected number of tabs");
michael@0:     is(nPreviews, gBrowser.tabs.length, "Browser has one preview per tab");
michael@0:     is(nPreviews, aPreviews, msg || "Got expected number of previews");
michael@0:   }
michael@0: 
michael@0:   function getPreviewForTab(tab)
michael@0:     window.gTaskbarTabGroup.previewFromTab(tab);
michael@0: 
michael@0:   function checkSelectedTab()
michael@0:     getPreviewForTab(gBrowser.selectedTab).active;
michael@0: 
michael@0:   function isTabSelected(idx)
michael@0:     gBrowser.tabs[idx].selected;
michael@0: 
michael@0:   function createThumbnailSurface(p) {
michael@0:     let thumbnailWidth = 200,
michael@0:         thumbnailHeight = 120;
michael@0:     let ratio = p.controller.thumbnailAspectRatio;
michael@0: 
michael@0:     if (thumbnailWidth/thumbnailHeight > ratio)
michael@0:       thumbnailWidth = thumbnailHeight * ratio;
michael@0:     else
michael@0:       thumbnailHeight = thumbnailWidth / ratio;
michael@0: 
michael@0:     return getCanvas(thumbnailWidth, thumbnailHeight);
michael@0:   }
michael@0: 
michael@0:   function getCanvas(width, height) {
michael@0:     let win = window.QueryInterface(Ci.nsIDOMWindow);
michael@0:     let doc = win.document;
michael@0:     let canvas = doc.createElementNS("http://www.w3.org/1999/xhtml", "canvas");
michael@0:     canvas.width = width;
michael@0:     canvas.height = height;
michael@0:     return canvas;
michael@0:   }
michael@0: }